CN103163402B - Relay protection device state monitoring apparatus based on secondary circuit and monitoring method - Google Patents
Relay protection device state monitoring apparatus based on secondary circuit and monitoring method Download PDFInfo
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- CN103163402B CN103163402B CN201310041448.3A CN201310041448A CN103163402B CN 103163402 B CN103163402 B CN 103163402B CN 201310041448 A CN201310041448 A CN 201310041448A CN 103163402 B CN103163402 B CN 103163402B
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- relay protection
- protection device
- transformer
- secondary circuit
- industrial computer
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Abstract
The invention discloses a kind of mechanical and electrical protection apparatus on-Line Monitor Device gathered based on secondary circuit, it is characterized in that, it includes transformer, transformer successively with analog-to-digital conversion module, industrial computer, alarm connects, described industrial computer is connected with relay protection device, described industrial computer accepts the information of analog-to-digital conversion module, gather the information of relay protection device in former transformer station, and both data are contrasted, if comparing result meets alert if: corresponding to same secondary circuit, both data ratio R are more than or equal to 1.05 or less than or equal to 0.95, then send alarm signal to alarm, simultaneously, industrial computer will accept the information of analog-to-digital conversion module, the information and the comparative result that gather relay protection device in former transformer station are uploaded to Cloud Server, realize data sharing.The present invention has applicable, reliable and stable, obtains relay protection device operation information in time, in order to timely early warning and overhaul plan when discovering device hidden danger, thus avoids the generation of accident.
Description
Technical field
The present invention relates to a kind of monitoring device and monitoring method, particularly relate to a kind of relay protection device state based on secondary circuit
Monitoring device and monitoring method.
Background technology
The maintenance that relay protection device was carried out by the fixed cycle, mainly by the way of simulation primary equipment fault, check protection
Device can correct operation, closing loop the most intact substantially without repairing character.Therefore the protection device that just regular inspection is complete,
Reliability does not improve, and it cannot be guaranteed that will not break down in a short time；Not carrying out the protection equipment overhauled, performance is the most not
The poorest.There is inspection in most protection equipment, not only causes the waste of human and material resources, financial resources, but also directly drops
Low power supply reliability；So, the state of relay protection device is monitored, finds that defect process become one already in time
The trend of kind, is also by the basis of repair based on condition of component simultaneously.
At present, study for relay protection device status monitoring both at home and abroad, but it is more to have problems.
(1) it is difficult to monitor and assess to the electronic devices and components operation conditions within microcomputer protecting device, life-span.
(2) although Microcomputer Protection has self-checking function, but acquisition precision and accuracy to device cannot be carried out self-check.
(3) relay protection secondary circuit being lacked monitoring means, as all monitored all loops, fund input will the most very
Add the complexity of equipment in big degree, easily cause parasitic loop to cause equipment incorrect operation.
For above-mentioned situation, relay protection device state is the direct reflection of equipment safety and Health level, advanced suitable by working out
With, reliable and stable relay protection device state monitoring apparatus, relay protection device operation information can be obtained in time, in order to sending out
Timely early warning and overhaul plan during existing hidden trouble of equipment, thus avoid the generation of accident.This is the needs of power system production development,
Also it is the inexorable trend of technological progress.
Summary of the invention
The purpose of the present invention is contemplated to solve the problems referred to above, it is provided that a kind of relay protection device state gathered based on secondary circuit
On-Line Monitor Device, it has and finds in time the fault that relay protection device occurs, it is possible to carry out before equipment breaks down point
Analysis early warning, compensate for the not enough advantage of conventional monitoring means.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of relay protection device state on_line monitoring device based on secondary circuit, it includes transformer, transformer successively with mould
Number conversion module, industrial computer, alarm connect, and described industrial computer is connected with relay protection device, and transformer gathers secondary circuit
Information, industrial computer gathers the secondary loop information of relay protection device simultaneously, and both data is contrasted, if comparing result
Meeting alert if, then send alarm signal to alarm, corresponding to same secondary circuit, described alert if is both data
Ratio R >=1.05 or≤0.95, meanwhile, industrial computer is by relay protection device in the information of reception analog-to-digital conversion module, collection transformer station
Information and comparative result be uploaded to Cloud Server, it is achieved data sharing.
Described transformer is arranged on tested secondary circuit, and transformer is mA level high accuracy open-close type transformer, and transformer is arranged on nothing
Need to have a power failure, and other equipment in transformer station is run the place having no effect.
The analogue signal of transformer collection is converted into digital signal and is uploaded to industrial computer by described analog-to-digital conversion module.
Described industrial computer receives the information of analog-to-digital conversion module, the information of relay protection device in collection transformer station, and by both numbers
According to contrasting, if comparing result meets alert if, then send alarm signal to alarm.
The guide rail card slot type that is installed as of described analog-to-digital conversion module is installed.
The monitoring method of a kind of relay protection device state on_line monitoring device gathered based on secondary circuit, concretely comprises the following steps:
Step one: industrial computer obtains in transformer station secondary loop information R1 in relay protection device by RS232；
Step 2: being stuck in by transformer on the CT line that need to survey secondary circuit, secondary loop information R2 of transformer collection turns through modulus
Industrial computer is sent into through RS485 bus after die change block conversion；
Step 3: to same secondary circuit, secondary loop information R1 in relay protection device and transformer are gathered by industrial computer
Secondary loop information R2 compares, i.e. R=R1/R2, if R is more than or equal to 1.05 or less than or equal to 0.95, then it is assumed that relay protection
Equipment is likely to occur fault, and alarm sends alarm signal, relevant information is uploaded to Cloud Server simultaneously.
Beneficial effects of the present invention: the present invention gathers secondary loop information by device transformer, gathers relay protection device simultaneously
Secondary loop information, both data are compared, it is judged that relay protection device run the most normal, it is not necessary to monitoring relay protect
Protect device components performance, have be suitable for, feature reliable and stable, convenient to carry out, can be the most pre-when hidden danger occurs in equipment
Police and overhaul plan, it is to avoid the generation of accident.Present invention, avoiding tradition maintenance mode relay protection device is damaged, save people
Power, the expenditure of material resources.And the acquisition precision of relay protection device and accuracy can be monitored, more comprehensively evaluate
Relay protection device running status.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the present invention.
Wherein, 1. transformer, 2. analog-to-digital conversion module, 3. industrial computer, 4. Cloud Server, 5. alarm, 6. relay protection device.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Such as Fig. 1, a kind of relay protection device state on_line monitoring device gathered based on secondary circuit, it includes transformer 1, mutually
Sensor 1 is connected with analog-to-digital conversion module 2, industrial computer 3, alarm 5 successively, and transformer 1 gathers secondary loop information, simultaneously industry control
Machine gathers the secondary loop information of relay protection device 6, and both data is contrasted, if comparing result meets alert if,
Then sending alarm signal to alarm, corresponding to same secondary circuit, described alert if is more than or equal to for both data ratio R
1.05 or less than or equal to 0.95, meanwhile, industrial computer 3 will receive analog-to-digital conversion module 2 information, gather transformer station in relay protection set
Information and the comparative result of standby 6 are uploaded to Cloud Server 4, it is achieved data sharing.
Described transformer 1 is arranged on tested secondary circuit, and transformer 1 is mA level high accuracy open-close type transformer, and transformer 1 is installed
Without having a power failure, and other equipment in transformer station is run the place that has no effect.
Described transformer 1 is voltage transformer summation current transformer.The simulation letter that transformer 1 is gathered by described analog-to-digital conversion module 2
Number being converted into digital signal is uploaded to industrial computer 3.
Described industrial computer 3 receives the information of analog-to-digital conversion module 2, the information of relay protection device 6 in collection transformer station, and incite somebody to action both
Data contrast, if comparing result meets alert if, then send alarm signal to alarm 5.
The guide rail card slot type that is installed as of described analog-to-digital conversion module 2 is installed.
The monitoring method of a kind of relay protection device state on_line monitoring device gathered based on secondary circuit, concretely comprises the following steps:
Step one: industrial computer 3 obtains in transformer station secondary loop information R1 in relay protection device 6 by RS232；
Step 2: be stuck in by transformer 1 on the CT line that need to survey secondary circuit, secondary loop information R2 that transformer 1 gathers is through modulus
Industrial computer 3 is sent into through RS485 bus after modular converter 2 conversion；
Step 3: to same secondary circuit, secondary loop information R1 in relay protection device 6 is adopted by industrial computer 3 with transformer 1
Secondary loop information R2 of collection compares, i.e. R=R1/R2, if R is more than or equal to 1.05 or less than or equal to 0.95, then it is assumed that relay
Protection equipment 6 is likely to occur fault, and alarm 5 sends alarm signal, and relevant information is uploaded to Cloud Server 4 simultaneously.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not limit to scope
System, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art need not pay
Go out various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (6)
1. a relay protection device state on_line monitoring device based on secondary circuit, is characterized in that, it includes
Transformer, transformer is connected with analog-to-digital conversion module, industrial computer, alarm successively, described industrial computer and relay
Protection equipment connects, and transformer gathers secondary loop information, and industrial computer gathers the secondary of relay protection device simultaneously
Loop information, and both data are contrasted, if comparing result meets alert if, then send to alarm
Alarm signal, corresponding to same secondary circuit, described alert if is both data ratio R >=1.05 or≤0.95,
Meanwhile, industrial computer by receive analog-to-digital conversion module information, gather relay protection device in transformer station information and
Comparative result is uploaded to Cloud Server, it is achieved data sharing.
2. relay protection device state on_line monitoring device based on secondary circuit as claimed in claim 1, it is special
Levying and be, described transformer is arranged on tested secondary circuit, and transformer is mA level high accuracy open-close type transformer,
Transformer is arranged on without having a power failure, and other equipment in transformer station runs the place having no effect.
3. relay protection device state on_line monitoring device based on secondary circuit as claimed in claim 1, it is special
Levying and be, the analogue signal of transformer collection is converted into digital signal and is uploaded to industrial computer by described analog-to-digital conversion module.
4. relay protection device state on_line monitoring device based on secondary circuit as claimed in claim 1, it is special
Levying and be, described industrial computer receives the information of analog-to-digital conversion module, the information of relay protection device in collection transformer station,
And both data are contrasted, if comparing result meets alert if, then send alarm signal to alarm.
5. relay protection device state on_line monitoring device based on secondary circuit as claimed in claim 1, it is special
Levying and be, the guide rail card slot type that is installed as of described analog-to-digital conversion module is installed.
6. utilize relay protection device state on_line monitoring device based on secondary circuit as claimed in claim 1
Monitoring method, it is characterized in that, concretely comprise the following steps:
Step one: industrial computer obtains in transformer station secondary loop information R1 in relay protection device by RS232；
Step 2: transformer is stuck on the CT line that need to survey secondary circuit, the secondary circuit letter that transformer gathers
Breath R2 sends into industrial computer through RS485 bus after analog-to-digital conversion module conversion；
Step 3: to same secondary circuit, industrial computer by secondary loop information R1 in relay protection device with
Secondary loop information R2 of transformer collection compares, i.e. R=R1/R2, if R more than or equal to 1.05 or
Less than or equal to 0.95, then it is assumed that relay protection device is likely to occur fault, alarm sends alarm signal, simultaneously
Relevant information is uploaded to Cloud Server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310041448.3A CN103163402B (en) | 2013-02-02 | 2013-02-02 | Relay protection device state monitoring apparatus based on secondary circuit and monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310041448.3A CN103163402B (en) | 2013-02-02 | 2013-02-02 | Relay protection device state monitoring apparatus based on secondary circuit and monitoring method |
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| Publication Number | Publication Date |
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| CN103163402A CN103163402A (en) | 2013-06-19 |
| CN103163402B true CN103163402B (en) | 2016-12-28 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777092B (en) * | 2013-12-23 | 2016-08-31 | 国家电网公司 | A kind of relay protection test system based on cloud and method thereof |
| CN105301419A (en) * | 2015-12-03 | 2016-02-03 | 中国电力科学研究院 | Cloud-technology-based automatic test system for protective relaying device |
| CN105807162A (en) * | 2016-03-25 | 2016-07-27 | 神华集团有限责任公司 | Action monitoring circuit for secondary circuits in electrical system and terminal strip |
| CN107634983B (en) * | 2017-08-02 | 2020-09-15 | 贵州电网有限责任公司 | Relay protection remote cloud service system |
| CN112114190A (en) * | 2020-10-16 | 2020-12-22 | 国网江苏省电力有限公司无锡供电分公司 | Online monitoring device for operation loop of power grid protection system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050001866A (en) * | 2003-06-26 | 2005-01-07 | 두산중공업 주식회사 | Apparatus of Monitoring a Space Heater in the Crane |
| CN101710692A (en) * | 2009-09-15 | 2010-05-19 | 珠海瑞捷电气有限公司 | Out-of-step protection method for synchronous motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7561396B2 (en) * | 2004-03-09 | 2009-07-14 | Samsung Measuring Instruments Co., LTD | Apparatus for monitoring open state of the secondary terminals of a current transformer |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050001866A (en) * | 2003-06-26 | 2005-01-07 | 두산중공업 주식회사 | Apparatus of Monitoring a Space Heater in the Crane |
| CN101710692A (en) * | 2009-09-15 | 2010-05-19 | 珠海瑞捷电气有限公司 | Out-of-step protection method for synchronous motor |
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| CB02 | Change of applicant information |
Address after: 274000, No. 199, Zhonghua Road, Shandong, Heze Applicant after: Heze Power Supply Company of State Grid Shandong Electric Power Company Applicant after: State Grid Corporation of China Address before: 274000, No. 199, Zhonghua Road, Shandong, Heze Applicant before: HEZE POWER SUPPLY COMPANY OF SHANDONG ELECTRIC POWER GROUP Co.,Ltd. Applicant before: State Grid Corporation of China |
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| CB03 | Change of inventor or designer information |
Inventor after: Han Yanfei Inventor after: Tian Keqiang Inventor after: Li Ming Inventor after: Li Zhongyuan Inventor after: Guo Qijun Inventor after: Sun Suliang Inventor after: Gong Lianxing Inventor after: Li Jipan Inventor after: Du Yuyu Inventor after: Zhang Yiqiang Inventor after: Li Ning Inventor after: Gu Dong Inventor after: Yan Xiaoting Inventor after: Liu Dejian Inventor after: Du Yinjing Inventor after: Gu Tong Inventor after: Wang Yang Inventor after: Xu Ke Inventor after: Chen Xiaodong Inventor after: Guo Rui Inventor after: Lv Su Inventor after: Niu Shuofeng Inventor after: Ai Maomin Inventor after: Hou Guangsong Inventor after: Deng Shuai Inventor after: DuanMu Bin Inventor before: Ai Maomin Inventor before: Hou Guangsong Inventor before: Deng Shuai Inventor before: DuanMu Bin Inventor before: Tian Keqiang |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20220202 |